Lamp



FIG. 1 is a perspective view of the lamp;

FIG. 2 is a right side elevational view of the lamp, the opposite side of which is a mirror image;

FIG. 3 is a front elevational view of the lamp;

FIG. 4 is a rear elevational view of the lamp;

FIG. 5 is a top plan view of the lamp; and,

FIG. 6 is a bottom plan view of the lamp.

The broken lines represent portions of the lamp that form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 